Demountable rim.



W. 1'. P. MOORE. DEMOUNTABLE RIM}, APPLICATION mm MAY27, 1915.

1 ,238, 1 76. Patented Aug. 28, 1917.

2 SHEETSSHEET 1.

W. I. P. MOORE.

DEMOUNTABLE RIM.

APPLICATION FILED MAY27,1915- I 1,238,176. i v Patented Aug. 28, 1917.

2 SHEETS-SHEET 2.

WILLIAM J. P. MOORE, OF NEW YORK, N. Y.

DEMOUNTABLE Rm.

Specification 01' Letters Patent.

Patented Aug. 28, 1917.

Application filed Kay 27, 1915. Serial No. 80,711.

To all whom it may concern:

Be it known that I, WILLIAM J. P. Moons, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Demountable Rims,of which the following is a specification, reference being had thereinto the accompanying drawing.

My invention refers to certaln novel and useful improvements in wheelr1ms for use with pneumatic cushion, or similar tires, the rim being oithe class commonly called demountable, which has the characteristic ofbeing capable of being readily removed from and applied to the rest ofthe wheel, said rim carrying with it ordinarily an inflated tire so thatupon the occurrence of a puncture, the injured tire may be quicklyremoved from the wheel and a new inflated tire subs stituted its placeby the aid of the speedy dismounting and re-assembling of the parts. Theinvent10n has for its object to simplify the use of a rim of thischaracter by reducing the number of its parts and so relating them thatthey can be more easily dispersed or assembled than is possible withother forms now in common use. The invention, therefore, consistsessentially in the various details and peculiarities in theconstruction,arrangement and combination of the various mechanical elements in theiroperative relation to each other for the purpose of attaining the objectin view, substantially as will bev hereinafter described and then moreparticularly pointed out in the claims.

In the accompanying drawing illustrating my inventioni Figure 1 isa sideelevation of my proved demountable rim with certain parts shown insection;

Fig. 2 is an enlarged cross-section on the line 2, 2 of Fig. 1;

Fig. 3 is an enlarged sectional side view on the line 3, 3 of Fig. 1;

Fig. i is a cross-section of the means for protecting the air valve onan enlarged scale;

Fig. 5 is a sectional detail on the line 5, 5

of Fig. 2;

Fig. 6 is a cross-sectional view of a modified form of the inventiomSimilar characters of reference designate corresponding parts throughoutthe different figures of the drawing.

1 designates the felly, which is usually of wood and is supported at theouter ends of the spokes 6 that lead fromthe felly to the hub 5, theseparts being common and wellknown. The folly 1 is provided with the clipsor engaging members 21 commonly used with demountable rims, and on theoutside of the felly 1 is a metal band 2 secured to the felly by meansof the screws 3 carried by the members 21 and passing through the fellyand having countersunk nuts 22, said metal band 2 having the beveled orinclined faces 23 near each edge.

12, 12 represent duplicate removable sec tions of a clencher rim' forholding the ordinary rubber shoe, within which is the in fiatable innertube." Between this outer rim and, the band 2,just described, is anothercircular metalliclocking ring 4: similar to the band 2, and removedtherefrom a short distance, but it is placed in close contactwith theclencher rim which is firmly seated thereon. The locking ring 4 isprovided near lts edges with inclined faces 24 similar to the faces 23of the band 2, but reversely inclined. This ring 4 consists of a pieceof spring metal having an outward tension and severed or divided at onepoint in its circumference where a space is left, in which space isplaced a transverse pin or key 14 between the adjacent ends ofthe ringapart and prevent the ring rom compressin inwardly when the demountablerim is ofi the'wheel and isbein carried on the car, which compressionmig t possibly occur through jarring or otherwise. In order to moreeasily keep the key in place between these adjacent ends, said ends arepreferably formed with a slight curvature or concave grooves, as showninFig. 1'. Theremoval of the key 14 allows the adjacent ends of the ring4: to be pressed together suit ciently farv to easily dislodge the ring4 from contact with the surrounding clencher rim. Instead of springmetal rings 4, rings of any other suitable material may be used.

A series of bolts 7, six or any'other suitto keep them that engage theinclined faces 23 and 24 of the band 2 and ring 4. The other ends of thebolts 7 are screw-threaded and provided with nuts 10 that screw uptightly against curved strips 9 corresponding to the strips 27, whichstrips 9 engage the faces 23 and 24: near the other edges of the band 2and ring 4. By means of these bolts 7 the members 2 and 4 are boundtightly together into a firm and compact combination through theengagement of the strips 9 and 27 with the inclined faces. I find itconvenient to employ with each bolt 7 a curved spring support 11 whoseends are slightly bent to engage the inclined faces 23 and 24, saidspring 11 being formed with a central opening 20 through which the bolt?passes. The spring, therefore, serves to keep the bolt from falling outof position when the nut and clamping strips have been removed in theprocess of changing the position of the aarts,

l The duplicate sections 12 of the clencher rim are provided withcircumferential grooves 25, one in each, that coincides withcorresponding circumferential grooves 26 on the adjacent face of thering l, and these coinciding grooves are adapted to contain wires 13,which are resilient and are in the form of a split ring, with a shortspace between the ends, as is shown in Fig. 3, this split allowing themto be more easily removed from the grooves. The tension of these wirerods 13 holds them in their grooves when the locking ring 4c is takenfrom the rim sections 12.

It will be obvious that when it is desired to disconnect the parts, allthe user of the wheel needs to do is to remove the nuts 10 from thebolts 7 so that these bolts may be loosened up sutliciently to releasethe strips 9 and 27, and then remove the rim sections 12 (with the tire)and the locking ring a with the wires 13 as a unit from the wheel. Whenthis is done access can be had to the inside of ring 4 and the lockingkey 14 removed, and the ring 4 may-then be collapsed away from the rimsections 12, the wires 13 which are bent or sprung on a larger circlethan the rim sections 12 remaining in the grooves of the rim sections12. The two rim sections 12 are then free to move laterally so that thetire can be removed and a new one substituted, after which theseelements may be again reassembled. I

There is provided special means for taking' care of the position of theair valve and locking rings, and in order to do this It employ a tubularsleeve 15 threaded at 16 to engage a. screw-threaded opening in the ring4. This sleeve 15 has near the screw-threaded end a flange 29 fittingclosely against the ring 4 and being circular in form and engaginglocsely the circular opening in the Leeann/e rim sections 12. The end ofthe sleeve 15 opposite to its point of attachment to the ring 4 looselyenters an opening 30 in the felly band 2. In this way the parts areproperly related to each other and the sleeve 15 offers a protection forthe stem 17 of the air valve device which is connected to theinner tubewithin the shoe carried in the clencher, said stem 17 passing in theusual way through the felly 1 and having thereon the clamping nut 19 andthe dust cap 18. Sleeve 15 also connects band 2, ring t and rim sections12 and locks them to prevent rotation.

In Fig. 6 I have represented a modification of the invention showing itsapplicability to a wide felly used with a truck wheel, or otherwise, andcarrying a pair of demountable rims. 28 denotes the telly, in connectionwith which is arranged a clip 31, the felly band 32, the removable ring33, the bolts 34, and the rim sections 35, the. parts being allassociated with each other in the manner similar to that shown in theother figures of the drawing, with the exception that the felly, itshand, the locking ring and the other devices are made of proper size toaccommodate therewith a pair of clencher rims instead of a single one,in order that a pair of tires may be used.

Many changes in the precise construction and arrangement of the variousparts may be made without exceeding the scope of the appended claims,and I, therefore, reserve the liberty of varying and changing the exactdetails within wide limits without sacrificing the advantages of theinvention or impairing the value of the claims.

Having thus described my invention, what 1 claim as new and desire tosecure by Letters Patent, is:

1. The combination with a wheel, of a surrounding flexible locking ringwith a portion of its circumference removed, a key inserted in the spacebetween the ends of said locking ring at times to prevent compression ofthe ring, outer flanged rim sections carrying the tire, and split ringsintroduced between the rim sections and the divided locking ring.

2. The combination with a wheel, of a locking ring severed at one pointof its circumference and provided with a key, said ring beingcircumferentially grooved, flanged rim sections surrounding the lookingring and being likewise grooved at points opposite to the grooves in thelooking ring, split wire rings introduced between the locking ring andthe rim sections, and means for securing these parts upon the wheel.

3. The combination with a wheel, of a demountable rim including alocking ring severed at one point of its circumference and provided witha key, and circumferentially grooved at points, flanged rim sectionssurrounding the locking ring and coincidentally grooved, split wirerings carried loosely in said grooves.

4. The combination with a wheel of a locking ring severed at one pointof its circumference and having its opposing ends grooved, a keyinserted between said ends at times to prevent compression of the ring,flanged rim sections, surrounding the lock- 10 ing ring, and split Wirerings introduced between the rim sections and the locking ring forconnecting them together.

In testimony whereof I affix my signature.

WILLIAM J. P. MOORE.

